You need to drop the 9's out, or upgrade the receiver and buy an amp. That receiver simply doesn't have the muscle needed for the 9's, in any scenario, being run on that receiver. Sure, you can connect them to it, you'll get sound too, but nowhere near what they are capable of and you'll risk damaging the speakers, the receiver, or both.

1. Upgrade to a strong receiver with pre-outs and get a 2 channel amp with 200 wpc minimum (5 channel amp would be better). With enough power you could run everything full range and get away without a sub...
2. Use what you have but get a sub and cross everything over at 80 hz (this is a waste of your speakers but will prevent damage)
3. Use what you have full range and keep the volume really moderate. This will sound pretty anemic, but if you crank up the volume you will fry tweeters or the receiver.

I totally for got to mention AI have Polk sub psw108
I know this may sound silly but my plan was to use this as a surround sound as well as for rocking the house are there any 7.1 units that will meet these speakers requirements
I haven’t found any but I’m not sure what I’m looking for at this point
Or do I need to drop a pair of a7 s out and go 5.1